Also, DOS/4GW, the extender included with with Watcom C was just a cut-down, sub-licensed version of DOS/4G by Rational. The proliferation of the Watcom/DOS/4G

Also, DOS/4GW, the extender included with with Watcom C was just a cut-down, sub-licensed version of DOS/4G by Rational. The proliferation of the Watcom/DOS/4G combo was because it was out there the earliest.